לעברית לחצו כאן
The installer will automatically install the Certificate in the following softwares:
Download the program from this link: http://netfree.link/pc/windows/CertInstaller.exe
Start the program and press 'Yes'. 
Choose your language and click "Accept and Install" (I agree).
If there are open browser the software will ask you to close them. Click "Close the browsers for me and continue the installation".
Click on "close".
That's it, we're done!
- Please note: Downloading the certificate through this link will only work when you are connected and surfing through NetFree.